Black toe pipe niipples are connectors with external threads on one end and welding ends on the other. They are made of high-quality carbon steel and are precision sandblasted or blackened to be rust-proof and corrosion-resistant. The external thread end can be directly connected to pipes or equipment with internal threads, while the welding end can be fixed to the pipe by welding, which is suitable for high-pressure and high-temperature environments. The product is convenient for welding and connection of accessory systems in industries such as boilers and heating oil and gas transportation equipment, providing reliable sealing and stable connection to meet a variety of engineering needs.

**Thread Standards**

- Supports a variety of international standard threads, including:

- **ISO7/1 (BSP)**: International general pipe thread.

- **ISO228-1**: Non-threaded sealing pipe thread.

- **NPT, NPSC, ANSI/ASME B1.20.1**: American standard pipe thread.

- **DIN2999 (German standard pipe thread).

- **G (Russian standard)** and other countries' thread standards.

- Specific thread standards can be customized according to customer needs to meet the diverse needs of the global market.

**Product standards**

- **BS EN10241**

- **ASTM A733**

- **DIN 2982**

**Specification parameters**

- **Specification**: DN6~DN150 (1/8"~6").

- **Process**: cutting, external treatment, machining, rust prevention, packaging.

- **Material**: S235, ST37, A53 Gr.B

- **Wall thickness**: SCH20-SCH160

- **Steel pipe**: welded pipe or seamless pipe

- **Pressure**: 1.6MPa-5.0MPa 

**Packing requirements**

Conventional carton and wooden pallet packaging, can be customized as required.

**Customized service**

For more information or customized services, please contact our sales team